70507525 has 12 divisors (see below), whose sum is σ = 95377824. Its totient is φ = 51278000.

The previous prime is 70507523. The next prime is 70507531. The reversal of 70507525 is 52570507.

It is not a de Polignac number, because 70507525 - 2¹ = 70507523 is a prime.

It is a super-2 number, since 2×70507525² = 9942622163251250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70507523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127921 + ... + 128470.

It is an arithmetic number, because the mean of its divisors is an integer number (7948152).

Almost surely, 2^70507525 is an apocalyptic number.

It is an amenable number.

70507525 is a deficient number, since it is larger than the sum of its proper divisors (24870299).

70507525 is a wasteful number, since it uses less digits than its factorization.

70507525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256412 (or 256407 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 70507525 is about 8396.8759071455. The cubic root of 70507525 is about 413.1221587918.

The spelling of 70507525 in words is "seventy million, five hundred seven thousand, five hundred twenty-five".